Add 12/14 and 30/80
12/14 + 30/80 is 69/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
12/14 = 12 × 40/14 × 40 = 480/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
30/80 = 30 × 7/80 × 7 = 210/560 - Add the two like fractions:
480/560 + 210/560 = 480 + 210/560 = 690/560 - 690/560 simplified gives 69/56
- So, 12/14 + 30/80 = 69/56
In mixed form: 113/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14+30/80 12/14+60/80 12/28+30/80 36/14+30/80 12/14+90/80 12/42+30/80 60/14+30/80 12/70+30/80 84/14+30/80 12/98+30/80